添加关照、全局等高线、修改图层问题

static/sdk/three/jsm/postprocessing/RenderPixelatedPass.js

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+import {
+	WebGLRenderTarget,
+	MeshNormalMaterial,
+	ShaderMaterial,
+	Vector2,
+	Vector4,
+	DepthTexture,
+	NearestFilter,
+	HalfFloatType
+} from 'three';
+import { Pass, FullScreenQuad } from './Pass.js';
+
+class RenderPixelatedPass extends Pass {
+
+	constructor( pixelSize, scene, camera, options = {} ) {
+
+		super();
+
+		this.pixelSize = pixelSize;
+		this.resolution = new Vector2();
+		this.renderResolution = new Vector2();
+
+		this.pixelatedMaterial = this.createPixelatedMaterial();
+		this.normalMaterial = new MeshNormalMaterial();
+
+		this.fsQuad = new FullScreenQuad( this.pixelatedMaterial );
+		this.scene = scene;
+		this.camera = camera;
+
+		this.normalEdgeStrength = options.normalEdgeStrength || 0.3;
+		this.depthEdgeStrength = options.depthEdgeStrength || 0.4;
+
+		this.beautyRenderTarget = new WebGLRenderTarget();
+		this.beautyRenderTarget.texture.minFilter = NearestFilter;
+		this.beautyRenderTarget.texture.magFilter = NearestFilter;
+		this.beautyRenderTarget.texture.type = HalfFloatType;
+		this.beautyRenderTarget.depthTexture = new DepthTexture();
+
+		this.normalRenderTarget = new WebGLRenderTarget();
+		this.normalRenderTarget.texture.minFilter = NearestFilter;
+		this.normalRenderTarget.texture.magFilter = NearestFilter;
+		this.normalRenderTarget.texture.type = HalfFloatType;
+
+	}
+
+	dispose() {
+
+		this.beautyRenderTarget.dispose();
+		this.normalRenderTarget.dispose();
+
+		this.pixelatedMaterial.dispose();
+		this.normalMaterial.dispose();
+
+		this.fsQuad.dispose();
+
+	}
+
+	setSize( width, height ) {
+
+		this.resolution.set( width, height );
+		this.renderResolution.set( ( width / this.pixelSize ) | 0, ( height / this.pixelSize ) | 0 );
+		const { x, y } = this.renderResolution;
+		this.beautyRenderTarget.setSize( x, y );
+		this.normalRenderTarget.setSize( x, y );
+		this.fsQuad.material.uniforms.resolution.value.set( x, y, 1 / x, 1 / y );
+
+	}
+
+	setPixelSize( pixelSize ) {
+
+		this.pixelSize = pixelSize;
+		this.setSize( this.resolution.x, this.resolution.y );
+
+	}
+
+	render( renderer, writeBuffer ) {
+
+		const uniforms = this.fsQuad.material.uniforms;
+		uniforms.normalEdgeStrength.value = this.normalEdgeStrength;
+		uniforms.depthEdgeStrength.value = this.depthEdgeStrength;
+
+		renderer.setRenderTarget( this.beautyRenderTarget );
+		renderer.render( this.scene, this.camera );
+
+		const overrideMaterial_old = this.scene.overrideMaterial;
+		renderer.setRenderTarget( this.normalRenderTarget );
+		this.scene.overrideMaterial = this.normalMaterial;
+		renderer.render( this.scene, this.camera );
+		this.scene.overrideMaterial = overrideMaterial_old;
+
+		uniforms.tDiffuse.value = this.beautyRenderTarget.texture;
+		uniforms.tDepth.value = this.beautyRenderTarget.depthTexture;
+		uniforms.tNormal.value = this.normalRenderTarget.texture;
+
+		if ( this.renderToScreen ) {
+
+			renderer.setRenderTarget( null );
+
+		} else {
+
+			renderer.setRenderTarget( writeBuffer );
+
+			if ( this.clear ) renderer.clear();
+
+		}
+
+		this.fsQuad.render( renderer );
+
+	}
+
+	createPixelatedMaterial() {
+
+		return new ShaderMaterial( {
+			uniforms: {
+				tDiffuse: { value: null },
+				tDepth: { value: null },
+				tNormal: { value: null },
+				resolution: {
+					value: new Vector4(
+						this.renderResolution.x,
+						this.renderResolution.y,
+						1 / this.renderResolution.x,
+						1 / this.renderResolution.y,
+					)
+				},
+				normalEdgeStrength: { value: 0 },
+				depthEdgeStrength: { value: 0 }
+			},
+			vertexShader: /* glsl */`
+				varying vec2 vUv;
+
+				void main() {
+
+					vUv = uv;
+					gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+				}
+			`,
+			fragmentShader: /* glsl */`
+				uniform sampler2D tDiffuse;
+				uniform sampler2D tDepth;
+				uniform sampler2D tNormal;
+				uniform vec4 resolution;
+				uniform float normalEdgeStrength;
+				uniform float depthEdgeStrength;
+				varying vec2 vUv;
+
+				float getDepth(int x, int y) {
+
+					return texture2D( tDepth, vUv + vec2(x, y) * resolution.zw ).r;
+
+				}
+
+				vec3 getNormal(int x, int y) {
+
+					return texture2D( tNormal, vUv + vec2(x, y) * resolution.zw ).rgb * 2.0 - 1.0;
+
+				}
+
+				float depthEdgeIndicator(float depth, vec3 normal) {
+
+					float diff = 0.0;
+					diff += clamp(getDepth(1, 0) - depth, 0.0, 1.0);
+					diff += clamp(getDepth(-1, 0) - depth, 0.0, 1.0);
+					diff += clamp(getDepth(0, 1) - depth, 0.0, 1.0);
+					diff += clamp(getDepth(0, -1) - depth, 0.0, 1.0);
+					return floor(smoothstep(0.01, 0.02, diff) * 2.) / 2.;
+
+				}
+
+				float neighborNormalEdgeIndicator(int x, int y, float depth, vec3 normal) {
+
+					float depthDiff = getDepth(x, y) - depth;
+					vec3 neighborNormal = getNormal(x, y);
+
+					// Edge pixels should yield to faces who's normals are closer to the bias normal.
+					vec3 normalEdgeBias = vec3(1., 1., 1.); // This should probably be a parameter.
+					float normalDiff = dot(normal - neighborNormal, normalEdgeBias);
+					float normalIndicator = clamp(smoothstep(-.01, .01, normalDiff), 0.0, 1.0);
+
+					// Only the shallower pixel should detect the normal edge.
+					float depthIndicator = clamp(sign(depthDiff * .25 + .0025), 0.0, 1.0);
+
+					return (1.0 - dot(normal, neighborNormal)) * depthIndicator * normalIndicator;
+
+				}
+
+				float normalEdgeIndicator(float depth, vec3 normal) {
+
+					float indicator = 0.0;
+
+					indicator += neighborNormalEdgeIndicator(0, -1, depth, normal);
+					indicator += neighborNormalEdgeIndicator(0, 1, depth, normal);
+					indicator += neighborNormalEdgeIndicator(-1, 0, depth, normal);
+					indicator += neighborNormalEdgeIndicator(1, 0, depth, normal);
+
+					return step(0.1, indicator);
+
+				}
+
+				void main() {
+
+					vec4 texel = texture2D( tDiffuse, vUv );
+
+					float depth = 0.0;
+					vec3 normal = vec3(0.0);
+
+					if (depthEdgeStrength > 0.0 || normalEdgeStrength > 0.0) {
+
+						depth = getDepth(0, 0);
+						normal = getNormal(0, 0);
+
+					}
+
+					float dei = 0.0;
+					if (depthEdgeStrength > 0.0)
+						dei = depthEdgeIndicator(depth, normal);
+
+					float nei = 0.0;
+					if (normalEdgeStrength > 0.0)
+						nei = normalEdgeIndicator(depth, normal);
+
+					float Strength = dei > 0.0 ? (1.0 - depthEdgeStrength * dei) : (1.0 + normalEdgeStrength * nei);
+
+					gl_FragColor = texel * Strength;
+
+				}
+			`
+		} );
+
+	}
+
+}
+
+export { RenderPixelatedPass };